Trane Technologies WIR10523 Instructions de montage
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT—This Document is customer property and is to remain with this unit. Please return to service information
pack upon completion of work.
Installer’s Guide
18-BC107D1-1A-EN
T.V.S. Harness for LSOV
WIR10523
GENERAL:
The new wire harness (WIR10523) needs to be installed
where the existing latching switchover valve (LSOV) harness
is. This new wire harness has a transient voltage suppressor
and is used to eliminate a potential voltage spike to the LSOV
solenoid when the LSOV gets commanded (This is NOT a
safety concern).
This kit is used with the following variable speed heat pump
models:
4TWV 4TWL9
4A6V 4A6L9
KIT CONTENTS:
Open and inspect contents for damage or missing items.
Qty. Description Part Number
1 LSOV Wire Harness WIR10523
1Wiring Diagram (Danfoss
Drive) D157619P05
1Wiring Diagram (VSPD Side
Discharge Units) D160092P01
1 Installer Guide 18-BC107D1-1A-EN
INSPECTION:
1. Unpack all components of the kit.
2. Check carefully for any shipping damage. If any damage
is found, this must be reported immediately and a claim
made against the transportation company.
3. Check to be sure all components are in the package. Any
missing components should be reported to your supplier
at once and replaced with authorized components only.
This information is intended for use by individuals
possessing adequate backgrounds of electrical and
mechanical experience. Any attempt to repair a central
air conditioning product may result in personal injury and/
or property damage. The manufacture or seller cannot
be responsible for the interpretation of this information,
nor can it assume any liability in connection with its use.
HAZARDOUS VOLTAGE!
Disconnect all electric power, including remote
disconnects before installing or servicing. Follow proper
lockout/tagout procedures to ensure the power can not
be inadverantly energized. Failure to disconnect power
before servicing could result in death or serious injury.
INSTALLATION:
1. Disconnect all the electrical power to the unit.
a. Wait two (2) minutes after disconnecting power as
the electrical components may hold a dangerous
voltage. Verify the DC Voltage is less than 42 VDC
as measured from the test points at the bottom of
the drive before servicing the drive.
2. Remove the unit control box cover.
3. Remove the unit top which allows access to the wire
routing (step not required for side discharge units).
4. Remove the unit side panel to gain access to the LSOV
solenoid.
2 18-BC107D1-1A-EN
Installer’s Guide
5. Remove the existing LSOV harness.
a. Disconnect the LSOV harness from the J8 header on
the Danfoss drive or J17 header on the AOC of the
variable speed side discharge units.
b. Remove several zip ties and disconnect the other
end of the harness that connects to the LSOV.
6. Open T.V.S. harness kit and remove the kit contents.
7.
Connect the new wire harness (WIR10523). See Figure 1.
a. Connect one end of the new wire harness to the
LSOV.
b. Route the new wire harness through the same
way as the LSOV harness that was removed earlier.
T.V.S. Harness
(WIR10523)
J8 or J17
Header
LSOV
Figure 1: Install T.V.S. Harness (WIR10523)
c. Use the replacement zip ties to secure the new wire
harness.
d. Connect the other end of the new wire harness into
the J8 header on the Danfoss drive or the J17 header
on the AOC of the variable speed side discharge unit.
8. Place the wiring diagrams provided with the kit to the
inside of the control box cover.
9. Reinstall the unit top (step not required for side discharge
models).
10. Reinstall the unit side panel and the control box cover.
11. Connect all the electrical power to the unit and return the
unit to operation.
18-BC107D1-1A-EN 3
Installer’s Guide
T.V.S. Harness
J8 LSOV Header
FANEEV
LOAD
MONITOR
TOOL
SHED
CANda
EXT.ODT
PERSONALITY MODULE STATUS
COMM
T4 T3
T1 T2
T5 T6
DATA
CHARGE
SOLENOID
(N/A Phase I)
10
1
18
9J1
J6 J4
DRB
J8
J20
J9
J3
J10
J2
J5
PWM
High Voltage
to Condensor
Fan Motor
Figure 2: T.V.S. Harness Connection Points - Danfoss Drives
Installer’s Guide
About Trane and American Standard Heating and Air Conditioning
Trane and American Standard create comfortable, energy efficient indoor environments for residential applications.
For more information, please visit www.trane.com or www.americanstandardair.com
The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are com-
mitted to using environmentally conscious print practices.
© 2020
18-BC107D1-1A-EN 22 Jan 2021
(NEW)
T.V.S. Harness
J17 LSOV Heade
r
Figure 3: T.V.S. Harness Connection Points - VSPD Side Discharge Units
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